Basic introduction Chinese name: GMS mbth: GoogleMobile Service Type: Mobile Service Developer: Google Support System: Basic introduction, level and general introduction of Android operating system GMS currently provides services such as search, voice search, Gmail, contact synchronization, calendar synchronization, Talk, map, street view, YouTube and Android market (from ICS to Play store). When users use Google services, Google can embed advertisements in various Google services. For example, when users use Google Maps, they can find advertisements to search for place names. When using Google mobile search, of course there are advertisements. Google actually takes users' attention in exchange for advertisers' money. Moreover, the Android smartphone operating system is actually Google's initiative to put its services on mobile phones, further consolidating its market position. According to GMS, Google gives different degrees of authorization to Android phones, and divides mobile phone manufacturers equipped with Android system into three levels, 1. Free use of Android operating system, but no embedded GMS2. Some GMS services are embedded, but mobile phones can't be branded with Google; 3. All GMS services are embedded, and Google trademarks can also be used. If Google GMS service is built into Android phone, it is equivalent to Google's officially certified product. At present, only a few mobile phone manufacturers in the domestic market have passed GMS certification. For example: HTC (Hongda International Electronics Co., Ltd.)-Samsung Electronics in Taiwan Province Province, China-Korea Mobile-Sony Ericsson in the United States-LG Electronics in the United Kingdom-Lumigon in South Korea (Danish Land Mobile Phone Company)-Aviva (Denmark)-Toshiba (France)-Japan and Chinese mainland. At present, all licensed mobile phones cannot pass GMS certification. GMS authentication is not as easy as expected. Google should consider whether to certify according to the strength of manufacturers and geographical factors. For manufacturers, GMS is an effective means to open brand differentiation, that is, identification, in addition to obtaining more Google service authorization rights. It can be seen that the comprehensive ability of a manufacturer can be judged simply by whether it has passed GMS certification or not.